TLG-1 Certificate of Analysis
Certified Reference Material: Tungsten Ore
Printable version of the certificate
TLG-1, a sample of a low-grade scheelite ore from Browne's Lake mine, Beaverhead County, Montana, was donated by General Electric Company, Cleveland, Ohio. In decreasing order of abundance, minerals present are: quartz, calcite, hydrogarnet, amphibole, dolomite, chlorite, feldspar, mica, clay minerals, scheelite, hematite, magnetite, sphalerite, and chalcopyrite.
| Material | Tungsten wt % |
|---|---|
| TLG-1 | 0.083 ± 0.004 |
A certificate of analysis will be issued with each order of TLG-1. A copy of CANMET Report 76-5, "Tungsten ores CT-1, BH-1 and TLG-1: Their characterization and preparation for use as certified reference materials", will be forwarded, free of charge, on request to the Coordinator, CCRMP.
| Constituent | wt % |
|---|---|
| W | 0.083 |
| Si | 21.5 |
| Al | 3.0 |
| Fe (total) | 8.6 |
| Ca | 16.6 |
| Mg | 2.7 |
| Na | 0.2 |
| K | 0.4 |
| Ti | 0.1 |
| Mn | 1.3 |
| Mo | <0.01 |
| C (total) | 1.4 |
| H2O+ (950°C) | 2.2 |
| H2O- (105°C) | 1.6 |
For further information
CCRMP, CanmetMINING
555 Booth Street
Ottawa, ON K1A 0G1
Canada
Telephone: 343-543-6830
E-mail: Contact CCRMP
Page details
- Date modified: